4.3.21 Power Failure (LED Indicator)
Cause or Circumstances
Failure
Action
No AC power into unit
On/Off switch is not turned
on.
Verify cord is plugged into a live wall outlet. Verify power
switch/circuit breaker on back of unit is turned on.
Mains power is present but
the 5V power supply is not
present.
Defective fuse F1 or F2 on
relay board.
Check the 5 volt supply. Refer to the Tips section (4.6.4).
If no 5 volts, possible defective fuses on mains to the
power supply, check F1 and F2 on relay board.
Defective power supply.
Check input to power supply for mains voltage. If
present and no 5 volts at output, then power supply is
defective.
4.3.22 “Radiant Heater Failure” Alarm
This alarm activates only when the canopy is at the top position.
Cause or Circumstances
Failure
Action
The software has turned on
the radiant heater but it is
either not turning on or the
current sense circuit is not
detecting that it is on.
Defective radiant heater or
wire harness.
Check the resistance of the radiant heater. Refer to the
Tips section (4.6.3). If defective, remove heater housing
cover and measure resistance at 3 pin connector
on heater to determine if heater or wire harness is
defective.
Defective warmer solid state
relay (SSR).
In service mode, check the voltage across the control
line of the radiant heater SSR. This control signal varies
between 0 VDC and about 12 VDC.
If voltage is present, replace SSR. The two SSRs are
identical and can be swapped for troubleshooting. If no
voltage, continue.
Defective 50 pin ribbon cable
between the relay and control
board.
Check for continuity on pins 37, 38, 39, and 40 (control
signals). If defective, replace cable. If OK, continue.
Defective relay board.
Replace the relay board.
4.3.23 “Temperature out of Calibration” Alarm
Cause or Circumstances
Failure
Action
Calibration data is lost.
Defective calibration.
Perform system calibration.
Defective control board.
If problem persists replace the control board.
42
6600-0343-000 104
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Chapter 4: Troubleshooting
Содержание Giraffe OmniBed
Страница 10: ...x 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Table of Contents ...
Страница 28: ...xxviii 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved About this Manual ...
Страница 38: ...10 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 1 Functional Description ...
Страница 48: ...20 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 2 Service Checkout ...
Страница 56: ...28 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 3 Calibration and Maintenance ...
Страница 260: ...232 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 6 Illustrated Parts ...